| DC 欄位 |
值 |
語言 |
| DC.contributor | 資訊工程學系 | zh_TW |
| DC.creator | 陳金發 | zh_TW |
| DC.creator | Jin-fa Chen | en_US |
| dc.date.accessioned | 2002-7-5T07:39:07Z | |
| dc.date.available | 2002-7-5T07:39:07Z | |
| dc.date.issued | 2002 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=89522001 | |
| dc.contributor.department | 資訊工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 在無線的感應網路裡，主要目的是為了從一群感應裝置裡收集所要的資訊，並將這些資訊傳遞回主要網路做進一步處理。為了能延伸資料擴及的範圍，多跳(multi-hop)傳輸必須被採用；在有限的電力資源限制下，電力節約是整個網路能持續長時間的關鍵。當一個裝置在不活動的工作狀態下，為了能減少電力消耗，採用了低耗電模式，這時需要一個有效率的喚醒方法來將裝置從沈睡中復甦。另一方面，藍芽是希冀中短距離、低耗電及低成本的無線傳輸標準，可是目前並沒有適合的方法來建構藍芽的多跳網路。所以在本篇文章中，我們探討一個使用藍芽技術做資料收集的感應網路，一個快速及且有效率的藍芽分散網絡(scatternet)建立方法用來建構整個感應網路，一個能源感知路徑選擇方法用來平衡各裝置電源的消耗速率，及一個叫做預競爭 (Per-contention) 的存取方法改進也被提出用來延長裝置的使用時間。 | zh_TW |
| dc.description.abstract | In wireless sensor networks, the goal is to gather intended data from a number of sensor nodes and propagate this information back to the infrastructure for further processing. Multi-hop transmission is required to extend the reachable data range. Under the constraint of limited energy resources, power conservation is a key to success for multi-hop wireless sensor networks to sustain a longer time. To maximize the lifetime of ad hoc sensor networks, the power consumption rate of individual nodes must be balanced. To reduce the power consumption when a node is not active, low power mode is applied; an energy efficient access scheme is required to revive the sleeping node. Bluetooth is a promising standard for low power, short-range and low-cost wireless communications. However, currently there is no suitable scheme for multi-hop Bluetooth ad hoc network establishment. Therefore, this thesis considers a data collecting sensor network using Bluetooth technology. A fast and energy efficient Bluetooth scatternet formation algorithm is designed to construct the network, a energy aware routing scheme is proposed to balance the power consumption rate of each node, and an improvement of Bluetooth access procedure called Pre-contention access is also proposed to lengthen the node lifetime. | en_US |
| DC.subject | 資料收集 | zh_TW |
| DC.subject | 低耗電 | zh_TW |
| DC.subject | 感應網路 | zh_TW |
| DC.subject | 藍芽 | zh_TW |
| DC.subject | Data gathering | en_US |
| DC.subject | Bluetooth scatternet | en_US |
| DC.subject | Low power | en_US |
| DC.subject | Sensor network | en_US |
| DC.title | 在使用藍芽技術的感應網路裡做低耗電資料收集 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Low Power Data Gathering in Sensor Networks using Bluetooth | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |